1.6 Plus Two Sep 2014 Physics

8/9/2019 1.6 Plus Two Sep 2014 Physics

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P.ART - III

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lnstructions:

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LrglB -rlPART-r19dnq : (i) gl6r,6npgt e$anndsqgsgLb o$eoru'lofl rieeqLb.

(ii) erfunem or5leorseoer ilgn$Glp@$gl 6rq95ls.Note: (i) Ansner all ihe questions.

(ii) Choose an.1 wdte tl-re conect answer.

$tupLl]uoir / PHYSICS(pL6lp LrrlrorLb qgnidler arg / Tamil & Engtish Versions)

www.kalvi$o ai.co4 , GlLDr.6p LodLr6tLrai,rs6ir : i50lMaximom Marks : 150

(1) sr 606ir6gr a9eon6oqggo erflurs L-$elrdl zeirarpn ereiirrpeoereiilrnl$gd GlsnfreneqLb. +ltrieLrLr61615ld genp Lrli6u rQ oiir ercop6rs erna nenf r r ror fl uo rrenqur ns.$ 6prf o5dseq6.

(2) E6DLh geiogl s6rq 6rougl6o6ir Lor@Go erlggarp 6Lr Lru-ldnr$t$pGerain@ Ln. r rrrsci'. areoyeuplE Gl L-lainden L,l u eirr @$ge4 Lb.

(1) Check the questiorl paper {or fairness of printing. If there is any 1a.k offairness, inform the I {all Suoervisor immediately.

(2) Use Black or Blue ink to rvrite and pencil to drau, diagrams.

30x1=30

r. g1q 9e$Log$eirr GpnLL5loi'r e$ri.sen,6rugehrgrflrg porp Spmnareuonooflugci S1gGergrrr earGl66o6n.5 GpnDgo$ri;6la p6ir. @r$p Gpir6lefi .9ur6ifls6ir(s) gcf $larparu.lqLb Gargtrur $eoeGers$arpq r.b GsnainqgriqgLb(+) gcr $eop Lo$g6 $eneGors$eopri GsnainLg6rigri(@) Ger:prur peop Lo$guo gGqr $eneGero$eop6 6)enai"rrr1196gLb(n) Gerprrr $aop Lofgr.b $aoe Gors$eopd Glenenrq19$gLi:Positive rays o{ the same elemellt ploduce t$,o di{ferent lraces in i Bain briclge massspectrometet The positive ions have :(a) Same mass ,,\'ith.lifferent velocitytbl -"mc InJ-- y.tl. \ jrne \,.,, i.\\c/ Dift. re.lt n-.... rr i h -arl^e voloc,rtd' liiterp_t n.d-- \ ith .) | e ent \.lo.il

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or9ri*L-l raturGr$p$peu, rrar: slteeuro :( et ) eoeeosugoin st$l riGler ai,ngldlge +Lo Lono @ gri1gLjr

(+) 6os6ir6 etpnGleraironfleir St61 orraono @66g1Lb(@ ) eoeoos .:ll$ riGler ainoofleir gr LiLo rasns @ grigtir(,-r.) areeos et$ nGer ainadoir pnoirg orra:ars @grigLirIn amplitude modulation, the banclwidth is :

(a) equal to the signal {requency(b) twice the signal frequency(c) thrice the signal frequency(d) four times the signal frequency

s. 8$er6ouararS8]6ir g [6e L] q5 LD r6irgJ

tg. ) G Lo6r 6\,6i,r (g- a roris -

\/1ich

oI the followingis a uniaxial crysial ?

(a) tourmaline (b) mica

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2.

(g)

(")

rlLLrrJrrsLD

topaz

( r,r, ) sai 6oan

(d) selenite

4. rlogl LD6ii,nL6DS$goiron ounq greuria.geenneu rgrflu 94fl dppeueorqLn po$erl(er ) @[nLDdr 6616,r.t6rrel.] (g) a- 61ppeu

(n ) rynGeu gefie6ppenThe scattering of sunlight by gas molecules in the earlh's atmosPhere is :

(a) Raman's elfect(c) TJ'ndal scattering

5, 1 amu ti(g eoLoner gfrPai :(]) 921 MeV (J}J) 931 McvEnergv equivalent of 1 amu is :

(a) 921 MeV (b) 931 ]i4ev

(@ ) qdtneu gcrfle$lppeo

(b) d-scattedng(d) Rayleighscaitering

(@l) 921 e\r

(.) 921 eV

(r) e31 v

(d) e31 v


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6. dlneu on$prqeu$$eu eoorrisruur Gle6ir6usi6oLb6a egaflair r-65l Gleudr@Lir$l1guqer9lare 6r6LoLons @1grio :

( g ) oEgcafl ein erainadhi;eoo et$oLone @ 1gdsGer omr@ Lb( g ) a$gsofl ein erainadrieoo (q6oDd rs $t6&sGerain@ Ln(@) eqgaaein sngprqeu$pflg 6er6:g$pno @6ri;eGer erin@ Lb

(n) *gaflofr BorLb u7r.lq 66op6ir5 $gdeGarain@LbThe torque on a rectangular coil placed in a uniform magrletic field is large, when i

(a) the number of turns is large(b) the number o{ turns is less(c) the plane of the coil is perpendicular to the rield(d) the area of the coil is small

7, ru-r' +$'6o enr cr,6i 6r &6- l6ill ii J6Lgi .(gt) parf e)6D6D Lr[a]6o6n (:5) r rri arar&GsnrLqein $lar+aru.r(6t) gl*oA LD6riorL6DL-r L-r

[6r.] 6i)60 (m)qer9lu9eh 6)16o6rl6odl

High frequency waves foliow :(a) the ground wave propagation (b) the ]ine of sight dtuection(c) ionosphe c propagatiorl (11) the cuNature of the eaith

8. enf L9ueSloinura, @tur;;s$$geiror painqeir $orLb :t-g.l rf,lanaru n.q, E chenG n.c 6),n ri..i, rflenuiAlri.ri coLb

(g) pareuuno Lcir6nclr rgl 6O,r.o $*p-.g adlr=1$eLoro

elarLoqLb(@) paoeuuns reironGrng 6tO,o.g ,6*p*.g olir 6argrerro elorLoqLb(r) pairLleiii Gors.geopLr Grnqg$g, pareuuns zeirorGungt @69$p $ar$orp o8r

+y95lDr5c6 tr etdoeug geoporneGarn +1duargl sroronsGeur eleoLoq LirAccording to relativity, the length of a rod in motion I

(a) is same as its rest length.(b) is more than its rest length.(c) is less than lts rest lengtil.(d) may be more or less than or equal to rest length depending on lhe speed of rod.

wwg.kalvisolai'COm t6lc;Lrqs /rurn over


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9. lC747 -eiir eodgeoar 41arro r9el pqs6l 6rairr 3 qgflur-g@ergt(e) qlr@ reir#Gr (q) qprrrugp zehef@(g) \,cc (m) Glerafl uSgrLr ihe Pin con{iguration of IC 741, pin 3 repiesents :(a) Inverting input &) Non-inverting input(.) Vcc (d) Ouiput

10. dl6ir@lTLrrErscir arLrGlungcrfleir ouglGu: eroflpnor rnu.l$5l GedogtLi ?(er)

gernnroiu (+y)arLoriron (S) Glg irLo na#lu_r Ln ( r-r,) gnr_61[6The mate al through u,hich elechic chalge can flow easily is :(a) quartz (b) mica (c) germanium (c1) copper

11. 6rdl6ifl .99)l6sq zarauulldo errfl6 r.l nlgennor Lruairll@$pLru@orgt.(g1) e2u235 (+) rrUr.t (6) srpr2:e (*) ,rUrr3The fuel used in Kamhi nuciear reactor is i(u) ,rUrru (b) qrU238 (c) nrpu23e (d) qrU233

12.g6rfl

6l6iJr edlarffia)err erpeir elqLrreoruglei.r o6lor6s gtqqLb?(c;t) A6Ii u96ir gaing1son Glsneirars(=5) gaflu l6r

=1eoar&G)oncirooo

, f oe'tSeir &ein o -.jpii " s re ar arae4 r9ei ga ,6ii,r 'D

"o -6i6i -

The photoelectdc current can be exDlained on the basis of:(a) Corprrscular. theory of tigllt(b) Wa.,,e theory of light(c) Elech.omagnetic theory o{ light(d) Quanlum theory of light

13. eO LCR Gpnri Long$ane 6 einGornr rda$fl el r_8 einGenrur$$l$19b 5l6ir6dr(9$SpElpg6 @oouGu ueiror oru Gergun@ 60.. eter$floin Gpngru_reind)efiLogrq 17.32 O 6r6rtld, r-Sleinoeorugeir Lo$Lrq :(sr) 30 o (+) 17.32 0 (6) 10 o (l) 1.n2 aIn a LCR sedes a.c circuit, the phase difference betr{ een curent and voltage is 60". ffthe net teactance of the circuit is 17.32 O, the value o{ the resistance is :(a) 30 o (q us2 o (c) i0 o (d) 1.732 o


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14. u96inlonD0 Geueur@erg:

(e ) ec - u lt":' Lorotir(+) DC uE16 LDLOLb(@) ac ioligLb oc ulleu(Fr') DC E 6 enrq@]Lb AC ugdo @priur 6+ueiu@Lir'Iransfolmer works on ;

(a) AC only(b) DC onlY

(c) both AC and DC(d) AC more effectively than DC

15. efiol LLoOal (Avalanche beakdown) gopeireorouno enn$geiron $lsperl

Alalanche breakdortn is Primarilv dePendent on the phenomenon of:

(b) ionisation

(d) recombination

16. 'R'6r6irlr5 flrrriri onfle$l 6r6ifl6D Lrro+6ir arfl6o6uEl6) L(D6 r(grb r-6le eAflursl606D$6nd)

't, 2Es ; '+ R 6 R '") RIf 'R' is the Rydbeig's constant, the shortest wavelength of Paschen series is:

R o'b a'

9:,b,

h,.,

oto'

R

17. 5d,r6bi'rnt+u lci,T gu61fl696l)661 6rditr 1.a SqLo6iT 10 cm L6irLu-'l sai'nalrnq$geuqeiro, rpGr oa'l ,.'eei a 9.i' q gg'; 'r er ir(sr) 2x10-s s (q)2x10-10 s (g) 5x10 8 s (n) 5'r0-r0 s

Time taken for the light to pass through a glass plate oIrefractive index 1 5and thickness

10cmis:(a) 2x10-8 s (b) 2x10 10 s (c) 5x10 8 s (ri) 5x10

10 s

(e)Gorse1@) Lon,gr-eu

(a) .ollision

(c) doping

(g) etuoaflu n6e Lb( r-r,) Lop geinP$eoanLr q

WWft\ikalviSolai.com t $rcr'-,,r" / rurn over


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18.96

sp 6u9o rueirr@$prL:@Lb gn a.c rfleireif)eir eqrnerf$lpei'r

ereirr5l :

(er) E.., L,," (+) E.,,. I..1"cos $ ($) E..,, I.",, sin + (lr.) EoIocosOThe average power consumed over one cycle in an a.c circuit is :

(a) E.*" r.-. (b) Erms Irmscos 4, (c) E.*. Irm.sin O (d) EoIocosO

19. st@16t ld rreu6rpneinaofl ein $eirer rrLr r nenp s6$$eoar6 e'fl uer n(er)J.1. pn6e6h (g) Grnn (@) enLoiGueu@ (n') rq Lglprdr6r,lvho proposed elliptical orbits for electrons in an atom 7

(a) J.J. Thomson (b) Bol.u (c) Somme eld (d) De Broglie

20. 16 6i'r@rTLL .elrn$$ o Glonainu, $q9 6r$611$f u9oirgrrrLb ClrSprGeu no$ps@aqg& g Cl er aiGu: L6h6n Ll6il6ifl u l6i 6l eirqeuLb.

(sr) ,% (+) ,% (O) { (.-r') aglungLb'l'he elechic field outside the plates of two oppositely charged plane sheets of charge

density (r is :

+(, n(al L &) r- (cl - (d) zero

21. eO iong$eoe 6)eira fleu 6eueur@$pL.rL.l@6 r-6ldned u rigoflar+

":r,, ";' (,t+a.). r:r..* (,t-l) 6r6ijrD dl6i,Tc6lrrLLgeop o0re6inp s-- e1o'o5 " p3$ri 6oog b.

{e) t+) l (9) . (") oInrn AC.ircuii rheapntie.tp-{p=F .i, (-, l.) *.r,r.".rrr"n-r r".in {.r-})by,

(o) ; (1,) n (") . (d) 0


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26. BO 6l6o666T5pr@ ugetrGpridl ug eir r-6 ehGoB g $l pemnen5, pr@sqg&d ar rGur-6le snLrqll 6)rnlgaoorri; 6snain@ $l7Lrqopr6i,5 LLF 6tlgp5: 60 pF 69et$orfl66pg L0 6itr6 rL.r r-.1Lr 6rngofloin u5lefionlq Lonfldl I(.er) 55 (:$)55 (6)) 12 (n') 10The capacitance of a Parallet Plate.aPacitor incieases from 5 pF to 60 pI, when adietectric is filled between'.he Plates. The dielectric constant of the diele't '

js :

(a) 65 (b) s5 (c) 12 (d) 10

27. Apbp Geuneur rSrrrflein l;ainq :(er ) +g dlehgeor(4) og oprGlpgLb G rigLb @tcorGu gflLr61rr r6)einparr(@) C g orgl: sr$rsLDri q,6irr6l rrdlcln o$lLreor oflr 6eop$p rdeinpau(n) n fleun r,OeirpeorAn ideal voltmeter has :(a) Zero resistance(b) Finite resistance less than G but greater than zero(c) Resistance greater than G but less than infinlty(d) Infiniteresistance

28. Geuerfleb GrpflLrq pe pe6 i;g Ll L9 eir(et) dleni'ift Peoeu egq&eaflah eronorflriarsaruo,llr elr+6l6oert slgl656lfl6ir

6i6 ir6iif 6 6o1 6 gt95 Li)(+) gtr+$'areuulleu .91@l&66,fl6i,r eralroofloeosaru o611 dlarie8 pareuu9cir

gg)d s 6/ 6ir eair all dcns e 6 aLb(@r) etq$l6o6DuElgl Lb 6lori6'E $ areu u 19 Lir lgxti56rfl6tr eiainadLieos srorir

.. flerip eo",.r9a =44 eo @ ri,a gAfter pumping process in laser :(a) the number of atoms in the ground state is $eatel than the number of atoms in

the excited state(b) the number of atoms in ihe excited state is greater tl-Ian the number of atoms in

the ground state(c) the number of atoms in the ground state is equal io the number of atoms in the

excited state(d) no atoms are available in the excited state


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29.glrr]6T)LD ergl@$perAeir opuq e.=1 qo reiron estrerb :

(et) eoro&sn (+) "npg ($l) sai'ramrqFor which of the following medium, the value of relative Permitivity

(a) Mica (b) Air (c) Glass

30. ABC ereirp ga$u.leiir eLoeinlnuqail oreifleorour&sLb

(sl) AB+a (+)E'e'e (6) AB+BC+CA

TTre Boolean exPression IEe can be simplified as :

(u) AB+C (b) A.B.c (c) AB +BC+ CA

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32.

(") ,Ei,'

(d) Watel

( rr) e+n+e

(d) A+B+C

u19$-rr7r,tnr-u

qgfluq : oonorGurgrrb u$leosur$gr orl1enn6oq9619Note: An$ /er any fifteen questions-

31. S)dflorLL r-0(inatlp6ern ereirpneu oreinen? stpoittWhat is corona discharge ? Give its applications'

erlaruuafl&oeqLi. 15x3=45

L r u-r 6inL r r(Ds6ir u-.r tr6i)d?

eoLoriGrrn stomr eorLoudu oeuofloin p$glor$arpB e-9.

Give the princiPle o{ wolking of a miclowave oven.

gr-6leir afl$oru6 e'go.State Ohris law.

_6lein $lOein,6l6i,r6drrD6l - Ga-g ,@$5o.

Distinguish between electric power and elecfic energy'

34.

www.kalvisolai.corn [ $]19rqo / Turn ovel


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35. 6 065 r@l r-b L-& oire,Dfl 6i,semr&69o.

10

dleinGetrnrr$$eir $1eo+aouqb erourr Lo $ Lrenuq Lb

10V1p6

In the followi11g circuit lind the magnitude and direction of the cullent.

10V 1g11

36. dloinGeonrrLb LrrulL-b gO@eoomuron

s LESIs(D66l6rlLGur Glsur6iLrOLhoJleoeugl6ir 1916r) LDrro e(D q, Lb g ur6n tr 6]60 [u]01.Define ampere in terms o{ force between two long parallel cur:rent carrying conductors.

37. dl6h6r$ppglT@ilrl6D ufdl ur .'" L,l nlGr e$$seocn6 a,ps.State Faraday's laws oI ele.tromagneti. induction.

38. p60r/ulL@r6 g6ijr0t{iClsr6ingd r&einsnLrq Cle rurLrLrrr 6falr0 fuQ airpain rer nenra ooir g g r-6l ela6l Ger n du rr-6 r rlg reir S enamrris ir r $ d efi pov.$) rulleLrremg 180 km/hr Gora$$eu g@erpnsq Lb qer9)Bsn$p, r qar$$eiClerag$gri a'f)ein ela$eoLo 0.2x10-4 trvb/m2 erenqLb, genrrounmrrraoir 1m$enr$Clpnareuer9leb reirenal eranel6 6onair@ Gornourr8rrrfleir reiror gfl69leir& . ,.b j 6r6n " ri rem ddl 1oA trair runs at a speed of 180 km/hr on a railway track with the two rails insulatedfrom each other and the glound and connected to millivoltmeter. IF the verticalcomponent of Earth's magneiic field is 0.2 x 10 4 lvb/m2 and the distance of sepalationbeiween the rails is 1 m, \^..hat would be the reading in the voltmeter ?


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39.

40.

41.

42.

11 4478

$lareo$lp$pLr r rr 6glri,E r@ a 1;nrrolionott p r$peoareeh u raror ?

l,ist ihe conllitions for sustained interferen'e'

Lurr @[rao,-Lrrgene gLro6leu 6000 A elarauscn19oeirongorfl Ll ueiru@$pL: l$tLb

Gunfg denrrigrn ul'-eor eot--Lb : '*" 900 +16l' P6ra6'lqi:il :6rdr133

4""**.6nelp6i" GLolGlsneirenLr r rrneo' 8eor&15Lir LrL6oL J)1561Lb ';r6ii60r?In \ oung's oiperrment, the wi'lth of the fringes- obtaille'l \\'ith

the light of wa1'elength

6000 A is 2 mm. caLculate the trrnge r,vidtir if the entire apparatus is immersed in aliquid of reftactil'e index 1'33'

GoneiuGa; et9$lu9eir I Lueinun@56n6flS p(85'

Give the applications of Nloselev's ltlw'

+tir LrEsgg6D x-a$n e$ofl Lb'-l c-Sltnoro$$19 rlr@rbGunS:o'27'Gsnallg$eu

5I arlrIIo"- -n Gpneirg$g)gr' x-s$lrfler eleneu$mLb 0'5sA^ereofleu' S[aiT @i -"r-E-g.", ", Do g $no' Cu roten

Gl p neneueri aooarri oeunBdl @ s

x-Ia .liffliactioltbvacr-vstatgi\,esiheclosestlineatanangleof6.2TTfthel;.:J,"'iili':.ii'i";a i. o.ii",o" ria ir." distance between the two cleavage planes'

gaflu9ei,r aernrodr 6r6i,rlr[6]r 6rdT 6 r? gorD06iT 6 6D556iT u'ln6Dol?

\Nhat are Photo-Cells ? What are its tlpes ?

,,po2ra s$flrds geenGrnuq rG59OpCr $g ^r'-6lzopeqearort: 99il+la.lpn

-s--t""p.l@$5LbGrngl

Lo6rrIr(5Lo pGenGrnLrrlleir sl@) 6r6in

LopgLr $enp ;-trmeoemrd s6iirri610s'

ThJraclioactile isotope *i'o214 unrlerPoes a suc'essivcdrsrnteSt'rtior of wo a decays

;;; ;;-il;..]: Fm.f iile atomic n.'Lber and m'rss number of the rerultingisotoPe'

sneiurdri s$lrisei 6r6frlnr6D 6r6ir6ir?

Wtrat are cosmic raYS ?

gO.ggPnl 6r6ijrD r6u 6r6fr 6ir?

urhat is rectification ?

43.

44.

45.

46.

www.kalvisolai.Gorn I6o'q* / rurnover


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47. ClprgLrLle&Egt 6r6ifiiDrldD 6r6in6r?What is an Integrated Ckcuit (IC) ?

72

+8. GaGpn@rie$ri. gteo euGp n&6lu9l6iJr (Cathode Ray Oscilloscope) qGpg1Lb 3r u oinseoenri; [email protected] any three uses of Cathode Ray Oscilloscope-

49, LEl6ijr6 (gli ge0u.loir eLoeinrnrarr pgelo :

(A + B) (A+ C)= A + BC,Piove the Boolean Identity (A+B) (A+C)=A+BC.

50. Ggnareupoall (Fax) 6r6inpnd0 ereinor? epein uur6o6rrd erglo.Mlat is Fax ? N{ention its use

U6TRI -Ml PART- III

OdluH | (i) erSleon erai,n 56 66 ooriwLquune or9arruoi&oor1Li. 7x5=35,ij, 6s p6i 6 ll o$a rdg,6Fl6i oooeuGulgtLb e5g] o6leo-rdoq1d6o$ eo uu.l afl riseq ri.

(iii) Gp6DorLru0Lb @:riooflel rrrEodr ereoTs.Note: (i) Answer Question No.56 compulsodly.

(ii) Answer any six of the remaining ll quesiions.(iii) Draw diagrams wherever necessary.

51.Srlr6ir L6leinqeu$$ldu 6oerr66u Lr L06iT6n L6)eir

@)6glororu9eir LBg 6eu:ebr@Lb$ll5uqo0arerisneo Goreoeueouru 6llge.De ve an explession for the torque acting on the electdc dipole placed in a uniformelechic {ield.

52. rJleinGernrr$$1$gLb @tgrqpo+Gors$$pgr.b $teorGu zoirar Glpnriir9enemLr61rga.Establish a relation between drili velocity and the curent flowing through a conductor.


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53. dd,or$$.rofl eh I u ei'rcoflou orarou ur gl Lb g$$ eoenr; gfl Lr 61 @s.

\ rrite any five aPplications of superconductors'

5a. 5>r5 Gl6fig?6irr sreualeondrrrfleu 1A L6l6irc6brr-'-Li30" d9J6u66D 61)

-#."egaig,. 60' o6l euoaoeu rainrn&gLb r5) airGeniru$$)coar6 sarridl $tsh1 a tangent galvanometer, a current of 1 A produces a de{lection oi 30'' Find thecnnent r-equiled to produce a deflection of 60'

55. dlefrmn flu.9o qlr@Lb roGorg areoa $lpoin @gLrqoairor er9orri6 +1orfraop6qgarprioLb 0)6oD66t6n 6r(951'6'

Exflain the energy losses in a transformer' How are thev minimised ?

56. urEr grL6oL rgareq qure$eu 6rroinG glflu-lcu qgocui eoflar 6le$lousofleir Ssoq6a:1:6p6nrd $arrluoeu ggl&6i@ L.r I rao racir Gpnetrgdeirpau GlrgLo

odpb

69o,i 6ef)eqrisnau p66'..1 5r6ii,r6'Ir Youns s cloubLe slit expertment tuo coherent sources of intensity latio of 64 : 1

;r.#":";*;;;;" rri,'gJ" col."rut" trt" ratio of maximumand minimum inrensities'

X 606D5/oR

Lro Genpeneougeu 5xLatl Hz ep riGarair reorur gofl rueir@[email protected] $1g rreoroofleir 6r'oLrr5r5@i;O $eorLlrrr.Gpnar6Dol

0 75 mm'

it I -gl g IiJ-Jeu $ eo [ @ o u 19 dr, L$ oneqeq96l9 $) ar r L.r .l * G p rareucr9 eo orrioan&6@s.

In a Young's double slit exPeriment a light oI frequency b 1014 Hz i'' used , DistanceU"t."""r, tfi" .",,t ". o1

adiacent fringes r 0'75 mm' Calculate the distance between the

slits if the screen is 1.5 m a\4'ay

57. GE6GpTOB s$naoioir u 6rirTL l56o6lr{i a'p*' (ereoorGuglLn 4$gl LDr$Lh)tr Jrite the properties oi .athode rays. (Any five only)

58. creuorqrnafl eir r-.- L$ rJne0 etcneu$crr.$$ lsnen Gsnaloleou u 6l lglo'

DedYe an expression for t1rc De Broglie wa\'elength of an elechon'

y/ww.kalvi5olai"corn I g)guqs / rurn over


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4478 14

59. g66iT 96i'rfl6iji Sl6opLrrr6irgl srp6ir eur6l $leoprouu GLrr6D gr6i,TgLD

Lrirg,aefid, geci $luragLb $leneGasb 6i6ir6in?At what sPeed is a particle mo\,inEl jf the mass is eLlual to three times its rest mass.

b0. 6 6irL66i g- "; - 9o rie.$e a o'-ei ar-" rir +rp g:. - "dar3t

6qlffid.B6l)rLa?

Explain how carbon-nitrogen cvcle can account for the Production of stellal energy.

bl. 9 -'6irn6' + opl a eSu-o ,-\i.'n, o " ere o "-c" e"Explain the function of a hansistor as a switch.

t'2. g; "'err Gr n +:elo l.ir e . -'D 6ars.

Dra\. .the block diagram of a simple RADAII svstem.

ug$] -lvl PART-IV

igdlul1 | (i) ereoeuGugtLb Dn6itr(g 6gl6orr&6(D&g et9 rfler noor eflaoruaflrisqLb. _ _^ _^(ii) Gpeoorur@6 @rrneerflau urra:oeir araoys.

4x10=40

Note : (i) Answel any four questions ill .letail.(il) Dra\a, diagrams u,herever necessarv.

6:. r-6leirGpddlu9 ain ppgtorp60F e$erfl. 96 @eoom$pr@ LdeirGS;SluQeirrlleirGprig$ppgi;onoo Goreoeranur Gugro.Explain the principle of a capa.itor. Deduce an expressiotl for the caPacitance of aparallel plate capacitor.

64. i6lefrGorrrrrb rnq6 or rreaqr,oi ei,r sr66l6i'r L6gehon g 5 'isiGei e1 L:@Lbon$p$ grainrglrisren Gsreooru9eoanr 6 rge.Deduce an cxpression for the magnetic inLluction at a point alons the a\is of a circularccil ca ving culrent.

65. 6r[,pLr L] 6DSS1d, s Li g daqgofleiir $e,ne eteoLoL.reor LDrEg6ri.i L)6DLb, sr$ailu1 eiirefi u 6 g er9 eo ear u $ gtom @ Lb go co p en u 6; a1g$ $ u n e$ t--;;'or + 99 rei;te,9lor rfl.

Discuss with theory the mcdlod of inducing emf ir a coil b}' changing its orientation\' ,ith respect to the direction of the magnetic Iield.


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66. 6l[nLD6i,T oSleoareoer$ pg,E.g +pDail orrLrrrltlsqgreir er9eufl.Explain Ilaman e{fect with energy level diagrams.

67. ereu6rTno{leir 6l6inglrlL ,61-p.gp*nl 611916 J.l. pnLieeh Gerparareou a, )errfl.Describe the f.J. Thornson method for determining the specific chatge of an electron.

68. 6lElL[r6ir ooor@r9rgLrq u fl oflord;g. etpeiir rainqoaoar erq9g1o.Describe the discovery of neutrons. Mention the prope ies of neutrons.

69. CE gl6op -El6l sleirro6orrrr NPN qqneh$loiurrfleir 6)poflarnen e$gLrLrLLbd6oti.Egr srg6i'r *oirof@ 6lpLrq oreoqoorar cdlonrilgs.Explain the input charactedstics of an NPN hansistor connected in common emitterconfiguration with the help of a neat circuit diagram.

70. 5(DLrrl - 6areireoor Gpneoeu6on:6 olf Gu9eir 6eualgoeopeou orrl r.l r$gt reinor )en&1qa.

lYith the help of a functional block diagram explain the operaflon of a monochromeIV re.eiver

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4478

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1.6 Plus Two Sep 2014 Physics

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